Tree up to 30 m tall, hemi-epiphytic or (secondarily?) terrestrial. Branches drying brown to blackish. Leafy twigs (3-)5-18 mm thick, ± angular, glabrous, sparsely minutely white puberulous mainly on the scars of the stipules or densely white puberulous; periderm persistent. Leaves spirally arranged; lamina oblong to subobovate to elliptic (or to oblanceolate), (8-)10-30(-38) by (3-)4-14(-16) cm, coriaceous, apex short-acuminate (to obtuse), the acumen mostly obtuse, base cuneate to rounded or to truncate (to cordate); upper surface glabrous (or minutely whitish puberulous on the midrib), lower surface glabrous or minutely white puberulous on the midrib or densely puberulous to subvelutinous on all veins; cystoliths on both sides; midrib ± prominent above to flat (or towards the base slightly impressed) above, lateral veins 6-12 pairs, the basal pair distinct, up to 1/8-1/3(-1/2) the length of the lamina, often (faintly) branched, departing from the midrib 0.2-1 cm above the base of the lamina, 1-3 pairs of smaller lateral veins below the main pair, tertiary venation reticulate or subscalariform, the areoles often small; waxy gland at the base of the midrib; petiole 2-8 cm long, 2-5 mm thick, glabrous or densely white puberulous, drying blackish or brown; stipules (1-)2-5(-14) cm long, sparsely to densely whitish (to brownish) puberulous to subvelutinous with the hairs sometimes retrorse, or glabrous, caducous; terminal buds often ± swollen. Figs axillary, paired (or solitary), sessile; basal bracts 3, 5-20(-30) mm long, mostly (almost) equal, semicircular to suborbicular with a rounded apex and broadest in or above the middle, covering (1/6-)1/3-2/3 of the receptacle, sometimes 1 or 2 with a distinct median part, glabrous or puberulous on the median part, persistent; receptacle (± depressed-)subglobose or ovoid to obovoid or to ellipsoid, 0.8-1.2, 1.5-2.5, or 2.5-3.5 cm diam. when dry, (sub)glabrous or sparsely white puberulous, mainly near the ostiole, yellow to dark red at maturity, apex slightly convex and submammillate, ostiole 2-4 or 6-10 mm diam., slightly prominent, closed, the 3 upper ostiolar bracts fully imbricate, often only 2 visible or the third just; wall ± smooth to ± shrivelled when dry; internal hairs absent. Tepals reddish. Ovary red.
An emergent tree in undisturbed to slightly disturbed mixed dipterocarp, (peat)-swamp and coastal forests at elevations up to 100 metres. Usually found on alluvial sites, near or along the sides of rivers and streams.
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